1. Methods Two-dimensional ultrasound and CDFI were applied on 419 patients with ureterolith.
   方法应用二维超声及CDFI对419输尿管结石病人进行超声检查。
2. Objective:To observe clinical effect and complications of treating ureterolith through aerodynamic trajectory lithotrity by ureterorenoscope(URS).
   观察经输尿管肾镜行气压弹道碎石治疗输尿管结石的临床疗效及并发症。

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